@MISC\{IMM1990-03784,
    author       = "V. V. Vidal and H. Ravn",
    title        = "Statisk Optimering",
    year         = "1990",
    pages        = "200",
    publisher    = "",
    address      = "",
    url          = "http://www2.compute.dtu.dk/pubdb/pubs/3784-full.html"
}